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Priority to JP1842672UpriorityCriticalpatent/JPS4895644U/ja
Priority to DE19732307507prioritypatent/DE2307507B2/de
Priority to DE19732365652prioritypatent/DE2365652C3/de
Priority to DE19737305777prioritypatent/DE7305777U/de
Publication of JPS4895644UpublicationCriticalpatent/JPS4895644U/ja